Plastisol composition

Abstract

The present invention relates to a plastisol composition based upon polyvinyl chloride and comprising polyvinyl chloride, plasticizers, and calcium carbonate, as main components, whereby the composition furthermore comprises a polyolefin oligomer having 2 to 4 carbon atoms in the monomer basic part, in an amount of 0.1 to 25% by weight of the total composition.

What is claimed is: 
     
       1. A plastisol composition comprising a mixture of: (a) polyvinyl chloride;   (b) plasticizer;   (c) calcium carbonate; and   (d) organic filler which is at least one polyolefin oligomer of an olefin monomer having 2 to 4 carbon atoms in an amount of from 0.1 to 25% by weight of the composition; wherein the polyolefin oligomer has a particle size distribution of from 5 to 20 microns; and wherein the polyolefin oligomer has a molecular weight of from 4,000 to 25,000.   
     
     
       2. The plastisol composition of claim 1 wherein the polyolefin oligomer has a particle size distribution of from 2 to 50 microns. 
     
     
       3. The plastisol composition of claim 1 wherein the polyolefin oligomer has a particle size distribution of from 5 to 20 microns. 
     
     
       4. The plastisol composition of claim 1 wherein the polyolefin oligomer is present in an amount of from 0.5 to 10% by weight of the composition. 
     
     
       5. The plastisol composition of claim 1 wherein the polyolefin oligomer is prepared from a monomer having the general formula:   CH.sub.2 ═CHR     wherein R is --H, --CH 3 , --(CH 3 ) 2 , --CH═CH 2 , or mixtures thereof.   
     
     
       6. The plastisol composition of claim 1 wherein the amount of polyvinyl chloride is from 15 to 40%, the amount of calcium carbonate is from 13.5 to 20%, and the amount of plasticizer and any other components is from 40 to 46.5%, all percentages being by weight of the plastisol composition. 
     
     
       7. The plastisol composition of claim 4 wherein the amount of polyvinyl chloride is from 30 to 40%, the amount of calcium carbonate is from 13.5 to 18%, and the amount of plasticizer and any other components is from 42 to 46.5%, all percentages being by weight of the plastisol composition. 
     
     
       8. The plastisol composition of claim 1 wherein the polyolefin oligomer is low molecular weight polyethylene in pulverulent form.